1992 Fiscal Year Final Research Report Summary
Effects of obioactin and obiopeptide-1, as a biological response modifier (BRM), on murine macrophage functions
| Project/Area Number |
03660320
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied veterinary science
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KONO Michiko Fac. of Agr., Univ. of Tokyo, Assistant Prof., 農学部, 助手 (70092202)
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| Co-Investigator(Kenkyū-buntansha) |
ONO Kenichiro Fac. of Agr., Univ. of Tokyo, Prof., 農学部, 教授 (50111480)
SUZUKI Naoyoshi Dep. of Vet. Physiol., Prof. Obihiro Univ., 畜産学部, 教授 (10003071)
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| Project Period (FY) |
1991 – 1992
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| Keywords | mouse / biological response modifier(BRM) / obioactin / obiopeptide-1 / macrophage / lysosome enzyme |
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| Research Abstract |
Effects of obioactin and obiopeptide-1, as a biological response modifier, obtained from hyperimmuned bovine serum against toxoplasma gondii, on murine macrophage functions were examined. The results obtained are as follows;
1) in vitro study: The changes of glucose consumption, oxygen intermediate release, ruffle formation, chemotactic responses, and toxoplasmacidal activity in murine macrophages cultivated with obioactin and obiopeptide-1 were examined. No difference was observed in phagocytic activity and Ia-positive cell numbers of murine macrophages caltivated with or without these 2 peptides. However, a significant increase of glucose consumption, oxygen intermediate release, and toxoplasmacidal activity in murine macrophage caltivated with these 2 peptides. The migration of murine macrophages caltivated with these 2 peptides was also observed at a dose related manner. The ruffle formation of macrophages caltivated with these 2 peptides were higher than those in macrophages caltivated with medium alone. These results indicated that obioactin and obiopeptide-1 have a macrophage activating factors and shows the character of biological response modifier.
2) in vivo study: The changes of the lysosomal enzyme activities(acid phosphatase, beta-N-acetyl- glucronidase, beta-glucronidase) in peritoneal and splenic macrophages of mice treated with these 2 peptides were examined. The lysosomal enzyme activities in both peritoneal and splenic macrophages was higher than those in macrophages from control mice. The protective activity against opportunistic infection with bacteri was also examined in cyclophosphamide- or carrageenan-pretreated mice. These peptides showed a protective activity against some bacterial infections.
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[Publications] Fujii, Y., Maki, Y., Claveria, G. F., Igarashi, I., Saito, A., Ono, K., and Suzuki, N.: "Effect of obiopeptide and obioactin on the toxoplasmacidal activity, glucose consumption and ruffle formation in mouse macrophages." J. Vet. Med. Sci.54. 351-353 (1992)
Description
「研究成果報告書概要(欧文)」より
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[Publications] Kono, M., Fujii, Y., Shikano, S., Ono, K., and Suzuki, N.: "Influence of a newly synthesized peptide, obiopeptide-1, as a biological response modifier(BRM), upon the lysosomal enzyme activities and chemotactic responses of mouse macrophages." J. Vet. Med. Sci.54. 793-795 (1992)
Description
「研究成果報告書概要(欧文)」より
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[Publications] Fujii, Y., Maki, Y., Ito, M., Saito, A., Igarashi, I., Ono, K., Itoh, K., and Suzuki, N.: "Restorative effects of newly synthesized peptide, obiopeptide-1, in cyclophosphamide- or carrageenan- pretreated mice infected with opportunistic bacteria." J. Protozool. Res.2. 74-83 (1992)
Description
「研究成果報告書概要(欧文)」より
